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disallow duplication of field names

  • ⚙️ This rule is included in all of "plugin:vue/vue3-essential", *.configs["flat/essential"], "plugin:vue/essential", *.configs["flat/vue2-essential"], "plugin:vue/vue3-strongly-recommended", *.configs["flat/strongly-recommended"], "plugin:vue/strongly-recommended", *.configs["flat/vue2-strongly-recommended"], "plugin:vue/vue3-recommended", *.configs["flat/recommended"], "plugin:vue/recommended" and *.configs["flat/vue2-recommended"].

This rule prevents using duplicate key names.

📖 Rule Details

This rule prevents duplicate props/data/methods/etc. key names defined on a component. Even if a key name does not conflict in the <script> tag itself, it still may lead to a conflict in the <template> since Vue allows directly accessing these keys from there.

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🔧 Options

  "vue/no-dupe-keys": ["error", {
    "groups": []
  • "groups" (string[]) Array of additional groups to search for duplicates. Default is empty.

"groups": ["firebase"]

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🚀 Version

This rule was introduced in eslint-plugin-vue v3.9.0

🔍 Implementation